25791895722 has 16 divisors (see below), whose sum is σ = 51811035552. Its totient is φ = 8559424560.

The previous prime is 25791895721. The next prime is 25791895741. The reversal of 25791895722 is 22759819752.

It is not an unprimeable number, because it can be changed into a prime (25791895721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9467029 + ... + 9469752.

It is an arithmetic number, because the mean of its divisors is an integer number (3238189722).

Almost surely, 2^25791895722 is an apocalyptic number.

25791895722 is an abundant number, since it is smaller than the sum of its proper divisors (26019139830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25791895722 is a wasteful number, since it uses less digits than its factorization.

25791895722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18937013.

The product of its digits is 6350400, while the sum is 57.

The spelling of 25791895722 in words is "twenty-five billion, seven hundred ninety-one million, eight hundred ninety-five thousand, seven hundred twenty-two".